Tom -foundationless will work (I love them) but there are a few things to consider
-dont place a whole empty box of them on with out at least one drawn comb or frame of foundation. (this to get the bees headed in the right direction.
-if you are looking for consistantly good comb, the best way to start using them is empty frames to the outside of the brood nest
-check out michael bush's web site on this subject
-if put on a strong colony, the first frames will be drone, this in normal. move to the outside and they will use them for honey storage, eventually they will start making good worker comb.
if you are using deeps you might consider wiring them